No
Your nephew's first cousin may or may not be related to you, depending on how the cousin is related to your nephew. Your nephew's cousin may be your child, or the child of one of your brothers or sisters. Your nephew is related to you by being the son of your sibling. That sibling has a spouse who may also have borthers and sisters. The children of any of those brothers and sisters are also your nephew's first cousins, but are not related to you.
He isn't related to you, not by blood anyway
Your sister's boyfriend's nephew is not directly related to you by blood. However, he is considered a part of your extended family through your sister's relationship with her boyfriend. In genealogical terms, he would be your sister's boyfriend's nephew, but not your nephew or cousin.
Snoop Dogg is related to soulja boy it is his sisters kid.
Your nephew's nephew is the son of one of your nephew's brothers or sisters. He is your great nephew.
His nephew .
Neice or nephew no dummy its nephew
niece or nephew
nephew
If your sister had a son, then he is your nephew.
My sister's son is my nephew.
Your sister's son is your nephew and you are his aunt (if you are female) or his uncle (if you are male.